Lenovo ThinkPad Edge 11 Hardware Maintenance Manual page 39
Hardware maintenance manual
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Also See for ThinkPad Edge 11:
- Hardware maintenance manual (130 pages) ,
- Manual de déploiement (62 pages) ,
- Implementierungshandbuch (62 pages)
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5. Measure the voltage of the backup battery. See the following figure.
• If the voltage is correct, replace the system board.
• If the voltage is not correct, replace the backup battery.
• If the backup battery discharges quickly after replacement, replace the system board.
Wire
Voltage (V dc)
Red
+2.5 to +3.2
Black
Ground
.
Chapter 3
General checkout
33
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